Intelligent-Traffic-Simulator
About the Intelligent-Traffic-Simulator PCB
Intelligent-Traffic-Simulator is an open source ESP32 PCB design by LimesKey, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 165.5 × 100.5 mm, with 148 components from 59 distinct parts.
Its main chip is the ESP32-WROOM-32UE, from the ESP32 family. Other key parts include the PCA9685PW, CH340K, TLV76133DCY, INA226 and MAX40200AUK. By type, the board carries 51 resistors, 36 capacitors, 21 test points, 10 ICs, 8 connectors and 8 diodes.
From the project
Detect how hot wheels cars navigate streets and interact with stop lights and how this can be applied to the real world.
Detect how hot wheels cars navigate streets and interact with stop lights and how this can be applied to the real world. Just a thing I made for class
It detects hot wheels cars via the three coils embedded in the PCB traces. The coils are hooked up to a 555 timer at around 200 KHz and when the hot wheels car is over the coil, the frequency changes which is detected by the ESP32 running a pulse counter script. Essentially a metal/object detector specifically calibrated for hot wheels cars.
Main components on the Intelligent-Traffic-Simulator
Intelligent-Traffic-Simulator bill of materials (BOM)
148 components, 59 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PCA9685PW | TSSOP-28_4.4x9.7mm_P0.65mm | U1 |
| 1 | ESP32-WROOM-32UE | ESP32-WROOM-32UE | U2 |
| 1 | CH340K | SSOP-10-1EP_3.9x4.9mm_P1mm_EP2.1x3.3mm | U3 |
| 1 | TLV76133DCY | SOT-223-3_TabPin2 | U4 |
| 1 | INA226 | TSSOP-10_3x3mm_P0.5mm | U5 |
| 1 | MAX40200AUK | SOT-23-5 | U6 |
| 3 | TLC555CDR | SOIC-8_3.9x4.9mm_P1.27mm | U7, U8, U10 |
| 1 | 74LVC3G17V8-7 DIODES(美台) | VSSOP-8_L2.1-W2.4-P0.50-LS3.2-BL | U9 |
| 2 | S8050 | TO-92_Inline | Q1, Q2 |
| 1 | 32.768kHz 7pF | Crystal_SMD_2012-2Pin_2.0x1.2mm_HandSoldering | Y1 |
| 1 | JTAG ESP-Prog | PinSocket_1x10_P2.54mm_Horizontal | J1 |
| 1 | UART | PinSocket_1x04_P2.54mm_Horizontal | J2 |
| 1 | I2C | PinSocket_1x04_P2.54mm_Horizontal | J3 |
| 1 | Conn_02x07_Top_Bottom | PinSocket_2x07_P2.54mm_Horizontal | J4 |
| 1 | Conn_01x03_Pin | PinHeader_1x03_P1.00mm_Vertical | J5 |
| 2 | Conn_01x07_Socket | PinSocket_1x07_P2.54mm_Horizontal | J6, J7 |
| 1 | USB-C Receptacle | USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J8 |
| 3 | Antenna_Loop | HOTWHEEL_DETECTOR | AE1, AE2, AE3 |
| 1 | 750mA Hold, 1.5A trip, polyfuse | Fuse_1812_4532Metric | F1 |
| 1 | 1.5A | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F2 |
Show 39 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 10k | Potentiometer_Bourns_3386P_Vertical | RV1, RV2, RV3 |
| 2 | Pushbutton | SW-SMD_6P-L5.2-W5.2-P3.70-LS6.4 | SW1, SW2 |
| 1 | BOOT | TestPoint_Bridge_Pitch2.54mm_Drill0.7mm | TP1 |
| 1 | DTR | TestPoint_Bridge_Pitch2.54mm_Drill0.7mm | TP2 |
| 1 | RTS | TestPoint_Bridge_Pitch2.54mm_Drill0.7mm | TP3 |
| 1 | LOOP_OUT_3 | TestPoint_Bridge_Pitch2.54mm_Drill0.7mm | TP4 |
| 2 | LOOP_OUT_2 | TestPoint_Bridge_Pitch2.54mm_Drill0.7mm | TP5, TP8 |
| 1 | LOOP_OUT_1 | TestPoint_Bridge_Pitch2.54mm_Drill0.7mm | TP6 |
| 1 | VBUSunreg | TestPoint_Bridge_Pitch2.54mm_Drill0.7mm | TP7 |
| 1 | 3V3 | TestPoint_Bridge_Pitch2.54mm_Drill0.7mm | TP9 |
| 12 | TestPoint | PinSocket_1x01_P2.54mm_Vertical | TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18 +4 |
| 6 | LED | LED_D5.0mm | D1, D2, D3, D4, D6, D7 |
| 1 | TT0314TPX | DFN2510-10_L2.5-W1.0-P0.50-BL | D5 |
| 1 | TPD3E001DRYR | Texas_USON-6_1x1.45mm_P0.5mm_SMD | D8 |
| 1 | FerriteBead R600 | L_0603_1608Metric | FB1 |
| 11 | 100nF | C_0402_1005Metric | C1, C6, C10, C11, C12, C20, C21, C23 +3 |
| 11 | 10uF | C_0402_1005Metric | C2, C3, C5, C13, C14, C15, C19, C24 +3 |
| 2 | 1uF | C_0402_1005Metric | C4, C22 |
| 1 | 22uF >10v XR5 | C_0805_2012Metric | C7 |
| 2 | 8.2pF | C_0402_1005Metric | C8, C9 |
| 3 | 22uF | C_0805_2012Metric | C16, C17, C18 |
| 3 | 10nF | C_0402_1005Metric | C25, C26, C33 |
| 3 | 1nF | C_0402_1005Metric | C27, C28, C34 |
| 6 | 10k | R_0402_1005Metric | R1, R21, R22, R28, R29, R36 |
| 16 | 50 | R_0402_1005Metric | R2, R3, R4, R5, R6, R7, R8, R9 +8 |
| 4 | 0 | R_0603_1608Metric | R18, R19, R26, R27 |
| 1 | 5 MΩ | R_0402_1005Metric | R20 |
| 2 | 200 | R_0402_1005Metric | R23, R32 |
| 2 | 4.7k | R_0402_1005Metric | R24, R25 |
| 2 | 47 | R_0402_1005Metric | R30, R31 |
| 1 | 0.05 1% | R_2512_6332Metric | R33 |
| 2 | 10 | R_0402_1005Metric | R34, R35 |
| 1 | 350 | R_0402_1005Metric | R37 |
| 2 | 5.1k 1% | R_0402_1005Metric | R38, R39 |
| 3 | 0 | R_0402_1005Metric | R40, R41, R48 |
| 2 | 5.1k | R_0402_1005Metric | R42, R49 |
| 1 | 5.1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R43 |
| 3 | 1k | R_0402_1005Metric | R44, R46, R50 |
| 3 | 1.5k | R_0402_1005Metric | R45, R47, R51 |
Intelligent-Traffic-Simulator design files
The KiCad project lives in the LimesKey/Intelligent-Traffic-Simulator repository on GitHub; these links point at the commit this page was built from.
Intelligent-Traffic-Simulator: common questions
What microcontroller does the Intelligent-Traffic-Simulator use?
The Intelligent-Traffic-Simulator is built around the ESP32-WROOM-32UE, from the ESP32 family.
How big is the Intelligent-Traffic-Simulator PCB?
The Intelligent-Traffic-Simulator measures 165.5 × 100.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Intelligent-Traffic-Simulator?
148 components, from 59 distinct parts. The full bill of materials is listed on this page.
Where can I download the Intelligent-Traffic-Simulator design files?
From the LimesKey/Intelligent-Traffic-Simulator repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Intelligent-Traffic-Simulator design in my own project?
Yes, under the terms of its Apache-2.0 license, which LimesKey chose for the repository.
Can I test firmware for the Intelligent-Traffic-Simulator without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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